FILE - This undated file photo provided by Cal State Fullerton on Monday, Feb. 4, 2013, shows Cal State Fullerton assistant women's NCAA college basketball coach Monica Quan in Fullerton, Calif. Quan and her fiance Keith Lawrence were found shot to death Sunday night on the top floor of a parking structure at the complex, police said. Former LAPD officer and U.S. Navy reservist Christopher Jordan Dorner, 33, is a suspect in the killings. (AP Photo/Cal State Fullerton, File)— AP

FILE - This undated file photo provided by Cal State Fullerton on Monday, Feb. 4, 2013, shows Cal State Fullerton assistant women's NCAA college basketball coach Monica Quan in Fullerton, Calif. Quan and her fiance Keith Lawrence were found shot to death Sunday night on the top floor of a parking structure at the complex, police said. Former LAPD officer and U.S. Navy reservist Christopher Jordan Dorner, 33, is a suspect in the killings. (AP Photo/Cal State Fullerton, File)
/ AP

San Diego  The ex-police officer and triple-murder suspect being sought in a massive statewide manhunt was in San Diego this week, leaving his ID and other personal items at various locations, authorities said.

The wallet and badge of ex-Los Angeles police officer and former Navy reservist Christopher Jordan Dorner, 33, were found early Thursday near Lindbergh Field.

Dorner had also checked into a hotel on a Point Loma Navy base on Tuesday and was supposed to check out Wednesday but never did, homicide Capt. Terry McManus said.

On Thursday, a report that Dorner might be back at the base hotel drew nearly 100 law officers, who blocked off North Harbor Drive and carried rifles as they searched the grounds. A nearby day care center and a few businesses locked their doors until police determined it was a false sighting.

Also Thursday, Irvine Police Department investigators were at the San Diego County sheriff’s station in Poway examining an impounded vehicle that may be tied to Dorner, Irvine police Lt. Julia Engen said. Engen said Dorner may have taken the vehicle’s plates. She declined to describe the vehicle or where it had been found, but 10News reported it was a Nissan Titan pickup, the same type of vehicle Dorner had.

Police are also investigating Dorner in connection with the attempted Wednesday night hijacking of a yacht in which the 81-year-old owner was tied up.

San Diego police broadcast a be-on-the-lookout at 6:38 a.m. for Dorner, who authorities say shot two Riverside police officers, one fatally, after shooting an LAPD officer earlier in the morning. “He has threatened to kill any police officer who tries to arrest him,” the SDPD warning said.

Dorner is described as black, 6 feet tall and 270 pounds with black hair and brown eyes.

His Nissan Titan pickup was found shortly after noon Thursday burning in Big Bear, and San Bernardino County authorities were conducting a door-to-door search for him.

Tips of possible Dorner sightings also continued to pour into San Diego law enforcement, and officers methodically checked each one out.

“This suspect is considered armed and dangerous,” said McManus. “This is an absolute priority for all Southern California law enforcement agencies. We ask the community to not get involved beyond dialing 911.”

Dorner also is wanted in the deaths of Cal State Fullerton coach Monica Quan and her fiance, Keith Lawrence, who were found shot to death in their car at a parking structure in Irvine Sunday night, Irvine police Chief David L. Maggard said.

In a long “manifesto” posted on Facebook, Dorner implicated himself in the couple’s killings and suggested he was out to clear his name after being fired from LAPD in 2008 for making false statements. He threatened to bring “warfare” to those in LAPD uniform, on or off-duty. Quan was the daughter of a former LAPD captain.

On Monday in National City, several items of police gear belonging to Dorner were found in a Dumpster near Civic Center Drive and Roosevelt Avenue, right behind the National City police headquarters, said Sgt. Alex Hernandez.